WO2021161485A1 - Terminal et station de base - Google Patents

Terminal et station de base Download PDF

Info

Publication number
WO2021161485A1
WO2021161485A1 PCT/JP2020/005672 JP2020005672W WO2021161485A1 WO 2021161485 A1 WO2021161485 A1 WO 2021161485A1 JP 2020005672 W JP2020005672 W JP 2020005672W WO 2021161485 A1 WO2021161485 A1 WO 2021161485A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal
random access
frequency bandwidth
access preamble
transmission
Prior art date
Application number
PCT/JP2020/005672
Other languages
English (en)
Japanese (ja)
Inventor
知也 小原
大樹 武田
慎也 熊谷
Original Assignee
株式会社Ｎｔｔドコモ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社Ｎｔｔドコモ filed Critical 株式会社Ｎｔｔドコモ
Priority to US17/798,226 priority Critical patent/US20230129299A1/en
Priority to JP2022500160A priority patent/JPWO2021161485A5/ja
Priority to CN202080095756.2A priority patent/CN115053618A/zh
Priority to EP20918835.8A priority patent/EP4106428A4/fr
Priority to PCT/JP2020/005672 priority patent/WO2021161485A1/fr
Publication of WO2021161485A1 publication Critical patent/WO2021161485A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to terminals and base stations in wireless communication systems.
  • eMBB enhanced Mobile Broadband
  • eMBB enhanced Mobile Broadband
  • Rediced Capacity NR devices sometimes called NR-light UE.
  • New device types are being considered that have low cost and low complexity.
  • Reduced Capacity terminal 10 The performance of Rediced Capacity NR devices (hereinafter referred to as Reduced Capacity terminal 10) is between eMBB / URLLC devices and LPWA (Low Power Wide Area, between LTE-M / NB-IoT) de. It is a device.
  • LPWA Low Power Wide Area, between LTE-M / NB-IoT
  • Examples of the functions of the Reduced Capacity terminal are UE Bandwidth reduction (a function to make the corresponding bandwidth of the terminal narrower than the corresponding bandwidth of a normal NR device), Redduced number of UE RX / TX antennas (the corresponding antenna of the terminal). (Function to reduce the number of antennas to be smaller than the number of antennas supported by a normal NR device), Half-Duplex-FDD, Relaxed UP processing time, Relaxed UE processing bandwidth, etc. are being studied.
  • the terminal prefferably set the frequency bandwidth used for transmission or reception of the terminal so that the random access preamble can be transmitted properly even if the corresponding bandwidth of the terminal is reduced.
  • Technology is needed.
  • a transmission opportunity for transmitting a random access preamble is selected, and the start position of the frequency bandwidth of the selected transmission opportunity or the center position of the frequency bandwidth of the selected transmission opportunity is determined.
  • a control unit that sets the frequency bandwidth used for transmission or reception of the terminal in order to enable transmission of the random access preamble in the frequency bandwidth of the transmission opportunity, and the frequency band set by the control unit.
  • a terminal comprising a transmission unit that transmits the random access preamble based on the width is provided.
  • the terminal appropriately determines the frequency bandwidth used for transmission or reception of the terminal so that the random access preamble can be appropriately transmitted even when the corresponding bandwidth of the terminal is reduced.
  • Technology is provided that allows it to be set to.
  • the wireless communication system in the following embodiment basically conforms to NR, but this is an example, and the wireless communication system in this embodiment is a wireless communication other than NR in a part or all of them. It may be compliant with a communication system (eg LTE).
  • a communication system eg LTE
  • FIG. 1 shows a configuration diagram of a wireless communication system according to the present embodiment.
  • the wireless communication system according to the present embodiment includes a terminal 10 and a base station 20.
  • FIG. 1 shows one terminal 10 and one base station 20, this is an example, and there may be a plurality of each.
  • the terminal 10 is a communication device having a wireless communication function such as a smartphone, a mobile phone, a tablet, a wearable terminal, and a communication module for M2M (Machine-to-Machine).
  • the terminal 10 receives the control signal or data from the base station 20 via the downlink (DL) and transmits the control signal or data to the base station 20 via the uplink (UL), thereby providing various types provided by the wireless communication system.
  • the channels transmitted from the terminal 10 include PUCCH (Physical Uplink Control Channel) and PUSCH (Physical Uplink Shared Channel).
  • the terminal 10 may be referred to as a UE, and the base station 20 may be referred to as a gNB.
  • the duplex system may be a TDD (Time Division Duplex) system or an FDD (Frequency Division Duplex) system.
  • a predetermined value is pre-configured in the base station 20 or the terminal 10. This may be the case, or it may be assumed that the base station 20 or the terminal 10 is pre-configured, or the radio parameter notified from the base station 20 or the terminal 10 is set. It may be set.
  • the base station 20 is a communication device that provides one or more cells and performs wireless communication with the terminal 10.
  • the physical resources of the radio signal are defined in the time domain and the frequency domain, the time domain may be defined by the number of OFDM symbols, and the frequency domain may be defined by the number of subcarriers or the number of resource blocks.
  • the base station 20 transmits a synchronization signal and system information to the terminal 10. Synchronous signals are, for example, NR-PSS and NR-SSS. A part of the system information is transmitted by, for example, NR-PBCH, and is also referred to as broadcast information.
  • the synchronization signal and the broadcast information may be periodically transmitted as an SS block (SS / PBCH block) composed of a predetermined number of OFDM symbols.
  • the base station 20 transmits a control signal or data to the terminal 10 by DL (Downlink), and receives the control signal or data from the terminal 10 by UL (Uplink). Both the base station 20 and the terminal 10 can perform beamforming to transmit and receive signals.
  • the reference signal transmitted from the base station 20 includes CSI-RS (Channel State Information Reference Signal), and the channels transmitted from the base station 20 are PDCCH (Physical Downlink Control Channel) and PDSCH (Physical Digital). including.
  • Multi-numerology In order to support a wide range of frequencies and use cases in 5G, it is necessary to support multiple numerologies (radio parameters such as subcarrier spacing and symbol length). Therefore, it is effective to design variable parameters in a scalable manner with reference to LTE numerology. Based on this idea, NR's Multi-Numerology has been introduced. Specifically, the reference subcarrier interval is the same as the LTE subcarrier interval, and is set to 15 kHz. Other subcarrier intervals are defined by multiplying the reference subcarrier interval by a power of 2. A plurality of subcarrier spacing configurations ⁇ are specified.
  • Cyclic prefix Normal
  • Cyclic prefix Normal
  • Cyclic prefix Normal or Extended
  • Cyclic prefix Normal
  • the number of slots included in one frame is 10, 20, 40, 80, 160, and the slots included in one subframe.
  • the numbers are 1, 2, 4, 8, and 16.
  • eMBB enhanced Mobile Broadband
  • eMBB enhanced Mobile Broadband
  • Rediced Capacity NR devices sometimes called NR-light UE.
  • New device types are being considered that have low cost and low complexity.
  • Reduced Capacity terminal 10 The performance of Rediced Capacity NR devices (hereinafter referred to as Reduced Capacity terminal 10) is between eMBB / URLLC devices and LPWA (Low Power Wide Area, between LTE-M / NB-IoT) de. It is expected to be a device.
  • LPWA Low Power Wide Area, between LTE-M / NB-IoT
  • UE Bandwise reduction (a function of narrowing the bandwidth supported by the terminal 10 to be narrower than the corresponding bandwidth of a normal NR device), and the Redduced number of UE RX / TX antennas (terminal 10).
  • a function that reduces the number of corresponding antennas to the number of corresponding antennas of a normal NR device), Half-Duplex-FDD, Relaxed UP processing time, Relaxed UE processing bandwidth, and the like are being studied.
  • FIG. 2 is a diagram showing an example of a table that defines the width of the frequency resource of the PRACH (Physical Random Access Channel) of NR.
  • the width of the frequency resource of the PRACH of NR is the subcarrier interval (SCS) of the PRACH ( ⁇ f RA for PRACH), the SCS of the PUSCH ( ⁇ f for PUSCH), and the sequence length of the PRACH. It is determined by the combination of L RA).
  • the width of the frequency resource of the PRACH of the NR is calculated as the number of resource blocks calculated from the SCS of the PUSCH.
  • the width of the frequency resource of the PRACH of NR is one of 2RB, 3RB, 6RB, 12RB, and 24RB.
  • 48 RB and 96 RB can be further selected as the width of the frequency resource of PRACH of NR.
  • 48RB and 96RB added for NR-U may be available only during NR-U operation, and may be available regardless of NR-U operation / normal NR operation.
  • FIG. 3 is a diagram showing an example of frequency division multiplexing (FDM) of RACH occupation (RO).
  • FDM frequency division multiplexing
  • RO RACH occupation
  • FIG. 4 is a diagram showing an example of the positional relationship between the reduced bandwidth of the Redduced Capacity terminal 10 and a plurality of frequency-division-multiplexed ROs.
  • the transmission or reception of the terminal may be such that the random access preamble can be appropriately transmitted to the terminal 10. It may not be possible to allocate the frequency bandwidth used (eg, if the reduced bandwidth of the terminal 10 (eg, 20RB) is less than the bandwidth of one RO (eg, 24RB)).
  • the bandwidth in which the BWP preset for the terminal 10 is reduced is reduced.
  • the entire frequency division multiplexing plurality of ROs are not included in the BWP preset for the terminal 10, and the ROs that can be used for transmitting the random access preamble are limited. there is a possibility.
  • the SSBs that can be used by the terminal 10 are also limited, and the position of the terminal 10 that allows the terminal 10 to access the cell. May be restricted.
  • the reduced bandwidth of the Redduced Capacity terminal 10 may be any of the following bandwidths from Option 1 to Option 4 below. According to the specifications, one or more bandwidths from the bandwidth of Option 1 to the bandwidth of Option 4 below are defined, and one of the bandwidths is the reduced bandwidth of the Redduced Capacity terminal 10. May be good. Further, the RB in the following is a number of RBs calculated based on the SCS of the PUSCH, and may be specified as a value of the RB converted into another SCS such as the SCS of the PRACH.
  • the reduced bandwidth may be 24 RB. Further, the reduced bandwidth may be any bandwidth from 24 RB to 96 RB.
  • the SCS ( ⁇ f RA for) of PRACH shown in FIG. 2 is excluded, except for the PRACH series lengths (LRA) 571 and 1151 added for NR-U.
  • a combination of PRACH), PUSCH SCS ( ⁇ f for PUSCH), and PRACH series length ( LRA ) may be used.
  • PRACH SCS ( ⁇ f RA for PRACH), PUSCH SCS ( ⁇ f for PUSCH), and PRACH series length (L RA ) added for NR-U is available only during NR-U operation. In normal NR operation, any combination other than the combination added for NR-U may be used among the plurality of combinations shown in FIG.
  • the reduced bandwidth may be 96 RB. Further, the reduced bandwidth may be 96 RB or more.
  • the SCS ( ⁇ f RA for) of PRACH shown in FIG. 2 including the series lengths (LRA) 571 and 1151 of PRACH added for NR-U.
  • LRA series length
  • Any combination of PRACH), PUSCH SCS ( ⁇ f for PUSCH), and PRACH series length ( LRA ) may be used.
  • any of the combinations of PRACH SCS, PUSCH SCS, and PRACH series length shown in FIG. 2 can be used during NR-U operation /. It can be used without distinction during normal NR operation.
  • the reduced bandwidth may be 20 RB. Further, the reduced bandwidth may be any bandwidth of 20 RB or more and less than 24 RB.
  • the combination of PRACH SCS, PUSCH SCS, and PRACH series length that can be used in the Reducated Capacity terminal 10 has a PRACH frequency resource width of less than 24 RB. It may be limited to combinations.
  • the downlink bandwidth part of the Reduced Capacity terminal 10 By setting the downlink bandwidth part of the Reduced Capacity terminal 10 to 20 RB or more, it is possible to receive SSB (20 RB).
  • the reduced bandwidth may be 12 RB. Further, the reduced bandwidth may be any bandwidth of 12 RB or more and less than 20 RB.
  • the combination of PRACH SCS, PUSCH SCS, and PRACH series length that can be used in the Reducated Capacity terminal 10 reduces the width of the frequency resource of PRACH of NR by less than 20 RB. It may be limited to combinations that are less than or equal to the specified bandwidth.
  • the bandwidth for transmitting the SSB may be set to the reduced bandwidth of less than 20 RB.
  • the reduced bandwidth may be the function (capability) of the terminal 10, and the capacity of the terminal 10 is notified from the terminal 10 to the base station 20. May be good. Further, the reduced bandwidth (Reduced bandwidth) may be determined based on the PRACH bandwidth.
  • the reduced bandwidth may be a common value for the downlink (DL) and the uplink (UL), or may be different values. ..
  • the reduced bandwidth (Reduced bandwidth) of the Redduced Capacity terminal 10 may be a common capacity for the downlink (DL) and the uplink (UL). Further, in the above-mentioned Options 1 to 4, the reduced bandwidth (Reduced bandwidth) of the Reduced Capacity terminal 10 may be a separate capacity for the downlink (DL) and the uplink (UL).
  • the Reduced Capacity terminal 10 may set the UL BWP based on the position of the frequency bandwidth of the RACH operation selected to transmit the random access preamble.
  • the Rediced Capacity terminal 10 may set the UL BWP with reference to the start position of the frequency bandwidth of the selected RO or the center position of the frequency bandwidth of the selected RO.
  • FIG. 5 is a diagram showing an example in which the Rediced Capacity terminal 10 sets the UL BWP based on the position of the frequency bandwidth of the selected RO.
  • the terminal 10 selects RO and sets UL BWP having the same bandwidth as the frequency bandwidth of the selected RO.
  • FIG. 6 is a diagram showing an example in which the Rediced Capacity terminal 10 sets the UL BWP with reference to the center position of the frequency bandwidth of the selected RO.
  • the terminal 10 selects RO and sets UL BWP having the same center frequency as the center position of the frequency bandwidth of the selected RO.
  • FIG. 7 is a diagram showing an example in which the Rediced Capacity terminal 10 sets the UL BWP with reference to the start position of the frequency bandwidth of the selected RO.
  • the terminal 10 selects the RO and sets the UL BWP at the start position in the same frequency direction as the start position of the frequency bandwidth of the selected RO.
  • the Rediced Capacity terminal 10 may set a UL BWP having a reduced bandwidth (Reduced bandwidth) of the Rediced Capacity terminal 10. For example, a UL BWP having a bandwidth corresponding to the capacity of the Reduced Capacity terminal 10 may be set.
  • a bandwidth other than the reduced bandwidth of the Reduced Capacity terminal 10 is specified and / or notified, and the terminal 10 may set a UL BWP having the specified and / or notified bandwidth.
  • the terminal 10 may set UL BWP having the same bandwidth as the bandwidth of the selected RO.
  • the terminal 10 may set a UL BWP having the same bandwidth as the notified UL BWP bandwidth.
  • the Rediced Capacity terminal 10 may set (Active) DL BWP based on the position of the frequency bandwidth of the RACH occupation selected for transmitting the random access preamble.
  • the Rediced Capacity terminal 10 may set (Active) DL BWP with reference to the start position of the frequency bandwidth of the selected RO or the center position of the frequency bandwidth of the selected RO.
  • the Rediced Capacity terminal 10 may select an RO and set an Active DL BWP having the same bandwidth as the frequency bandwidth of the selected RO.
  • the Rediced Capacity terminal 10 may select an RO and set an (Active) DL BWP at the same center position as the center position of the frequency bandwidth of the selected RO.
  • the Rediced Capacity terminal 10 may select RO and set (Active) DL BWP at the start position in the same frequency direction as the start position of the frequency bandwidth of the selected RO.
  • the (Active) DL BWP may have some or all parameters (bandwidth, frequency position, etc.) the same as the set (Active) UL BWP.
  • the base station 20 may set the UL BWP in advance before the Redduced Capacity terminal 10 selects the RACH occupation for transmitting the random access preamble. Further, the base station 20 does not have to set the UL BWP in advance before the Redduced Capacity terminal 10 selects the RACH occupation for transmitting the random access preamble. If the base station 20 sets the UL BWP in advance before the Reduced Capacity terminal 10 selects the RACH operation for transmitting the random access preamble, the Redduced Capacity terminal 10 is set in advance by the base station 20.
  • the bandwidth of the BWP may be applied as it is, and the frequency position of the UL BWP may be adjusted according to the position of the frequency bandwidth of the RO selected by the Reducated Capacity terminal 10 (for example, the Reducated Capacity terminal 10 may be used).
  • the frequency position of the UL BWP may be adjusted so that the frequency band of the selected RO is included in the UL BWP).
  • the Redduced Capacity terminal 10 may be adjusted so that the newly set UL BWP is included in the band of the UL BWP set in advance by the base station 20.
  • a time gap or processing time required for switching the BWP by the terminal 10 may be specified between the SSB and the RO (for example, even if specified in the specifications). good). This is because switching the BWP requires processing such as RF (Radio Frequency) tuning on the terminal 10.
  • RF Radio Frequency
  • each terminal 10 of the plurality of Rediced Capacity terminals 10 sets the UL BWP based on the position of the frequency bandwidth of the RACH acquisition selected for transmitting the random access preamble. It is a figure which shows.
  • the position of the frequency bandwidth of the RO selected by the terminal # 1 is different from the position of the frequency bandwidth of the RO selected by the terminal # 2.
  • Terminal # 1 selects a UL BWP with the same frequency bandwidth as the selected RO and the same bandwidth.
  • Terminal # 2 selects UL BWP at the same frequency bandwidth position and the same bandwidth as the selected RO.
  • FIG. 8 and 9 show an example in which each terminal 10 of the plurality of Rediced Capacity terminals 10 sets the UL BWP based on the position of the frequency bandwidth of the RACH acquisition selected for transmitting the random access preamble. It is a figure which shows.
  • the position of the frequency bandwidth of the RO selected by the terminal # 1 is different from the position of the frequency bandwidth of the RO selected by the terminal # 2.
  • Terminals # 1 and # 2 set UL BWP at the same frequency bandwidth position and the same bandwidth as the selected RO. In this case, if the capabilities of terminal # 1 and the capabilities of terminal # 2 are different, the bandwidth of UL BWP set by terminal # 1 and the bandwidth of UL BWP set by terminal # 2 are different. You may.
  • FIG. 10 is a diagram showing an example in which the Rediced Capacity terminal 10 retransmits the random access preamble.
  • the Redduced Capacity terminal 10 selects an RO different from the RO at the time of transmitting the first random access preamble when retransmitting the random access preamble
  • the Reduced Capacity terminal 10 is retransmitted.
  • (Active) UL BWP may be set based on the position of the frequency bandwidth of the reselected RO.
  • the frequency bandwidth set by "BWP” in the above-described embodiment may be a frequency bandwidth different from the frequency bandwidth set by the existing BWP.
  • the name of "BWP” in the above-described embodiment may be different from the name of BWP.
  • the frequency bandwidth set by "BWP” in the above embodiment may be a finer frequency bandwidth as newly defined within the framework of the existing BWP.
  • the frequency bandwidth set by "BWP” in the above-described embodiment may be a frequency bandwidth that can be used only within the frequency range of the existing BWP.
  • FIG. 11 is a diagram showing an example of the frequency bandwidth set by the new BWP.
  • the frequency bandwidth set by the new BWP may be a frequency bandwidth included in the frequency range of the existing BWP.
  • the Redduced Capacity terminal 10 may be able to set an active UL BWP having a bandwidth wider than the reduced bandwidth (Reduced bandwidth) of the terminal 10, and the range thereof. It may be possible to send a random access preamble within. For example, according to the capacity of the Reduced Capacity terminal 10, when it is possible to set the BWP of 20 MHz, it may be possible to set the UL BWP of 100 MHz at the time of transmitting the random access preamble.
  • the Redduced Capacity terminal 10 cannot transmit the random access preamble over the entire 100 MHz UL BWP, and can transmit the random access preamble at the 20 MHz UL BWP included in the bandwidth of 100 MHz. You may.
  • the Reduced Capacity terminal 10 may perform RF tuning as necessary each time UL transmission is performed. For example, according to the capacity of the Reduced Capacity terminal 10, it is possible to set the UL BWP of 100 MHz at the time of transmitting the random access preamble when the capacity has a frequency bandwidth up to 20 MHz. In this case, for example, each time a random access preamble is transmitted, the Redduced Capacity terminal 10 may set a position for transmitting a 20 MHz random access preamble within the 100 MHz UL BWP. For example, the gap required for RF tuning by the Reduced Capacity terminal 10, processing time, and the like may be specified (for example, it may be specified by the specifications).
  • the Reduced Capacity terminal 10 sets an active UL BWP having a wider bandwidth than the reduced bandwidth (Redduced bandwidth) of the terminal 10 at the time of transmitting a random access preamble until the UL BWP is set by RRC signaling or the like.
  • the operation of transmitting a random access preamble may be continued within that range according to the capacity of its own frequency bandwidth.
  • the Redduced Capacity terminal 10 When the Redduced Capacity terminal 10 can set an active UL BWP having a bandwidth wider than the reduced bandwidth (Reduced bandwise) of the terminal 10 at the time of transmitting a random access preamble, the Rediced Capacity terminal 10 10 may also be able to set an active DL BWP having a bandwidth wider than the reduced bandwidth of the terminal 10 for the DL BWP.
  • the Redduced Capacity terminal 10 can set an active UL BWP having a bandwidth wider than the reduced bandwidth (Reduced bandwise) of the terminal 10 at the time of transmitting a random access preamble, the Rediced Capacity terminal 10 In 10, the DL BWP may be set independently of the UL BWP to be set, or the DL BWP may be the same as the UL BWP.
  • the Reduced Capacity terminal 10 does not have to assume that the UL BWP is set and that the UL BWP is set when transmitting the random access preamble.
  • the Redduced Capacity terminal 10 may transmit the random access preamble in any frequency band of the system when transmitting the random access preamble.
  • the Reduced Capacity terminal 10 may perform RF tuning as necessary each time UL transmission is performed.
  • the gap required for RF tuning by the Reduced Capacity terminal 10, processing time, and the like may be specified (for example, it may be specified by the specifications).
  • the Redduced Capacity terminal 10 may continue the operation of setting the UL BWP and not assuming that the UL BWP is set at the time of transmitting the random access preamble until the UL BWP is set by RRC signaling or the like.
  • Proposal 3 (Option 1 of Proposal 3)
  • the Redduced Capacity terminal 10 performs "UL transmission during random access” or "UL transmission until UL BWP is set by RRC or the like” after random access preamble transmission, and random access (for example, set in Proposal 2). It may be performed within the frequency range of BWP at the time of preamble transmission.
  • the Redduced Capacity terminal 10 performs "UL transmission during random access” or "UL transmission until UL BWP is set by RRC or the like" after random access preamble transmission, and random access (for example, set in Proposal 2). It may be performed outside the frequency range of BWP at the time of preamble transmission.
  • the Reduced Capacity terminal 10 may perform RF tuning as necessary each time the UL transmission is performed. For example, the gap, processing time, etc. required for RF tuning by the Reduced Capacity terminal 10 may be specified (for example, it may be specified by the specifications).
  • the Reduced Capacity terminal 10 sets UL BWP and UL BWP for "UL transmission during random access” or "UL transmission until UL BWP is set by RRC or the like" after random access preamble transmission. You may go without assuming that.
  • the Reduced Capacity terminal 10 may perform RF tuning as necessary each time the UL transmission is performed. For example, the gap, processing time, etc. required for RF tuning by the Reduced Capacity terminal 10 may be specified (for example, it may be specified by the specifications).
  • UL transmission during random access or "UL transmission until UL BWP is set by RRC or the like" after random access preamble transmission is, for example, a message of a random access procedure.
  • Msg3 may include ACK / NACK for MsgA PUSCH, DL transmission (Msg2, Msg4, MsgB, other DL) in a two-step random access procedure.
  • the frequency position, frequency bandwidth, etc. of the DL BWP set for the Reducated Capacity terminal 10 may be the same as the frequency position, frequency bandwidth, etc. of the UL BWP.
  • the frequency position, frequency bandwidth, etc. of the DL BWP set for the Reduced Capacity terminal 10 may be set independently of the frequency position, frequency bandwidth, etc. of the UL BWP.
  • the terminal 10 and the base station 20 have all the functions described in the present embodiment. However, the terminal 10 and the base station 20 may have only a part of all the functions described in the present embodiment.
  • the terminal 10 and the base station 20 may be collectively referred to as a communication device.
  • FIG. 12 is a diagram showing an example of the functional configuration of the terminal 10. As shown in FIG. 12, the terminal 10 has a transmitting unit 110, a receiving unit 120, and a control unit 130.
  • the functional configuration shown in FIG. 12 is only an example. Any function classification and name of the functional unit may be used as long as the operation according to the present embodiment can be executed.
  • the transmitter 110 may be referred to as a transmitter
  • the receiver 120 may be referred to as a receiver.
  • the transmission unit 110 creates a transmission from the transmission data and wirelessly transmits the transmission signal. Further, the transmission unit 110 can form one or a plurality of beams.
  • the receiving unit 120 wirelessly receives various signals and acquires a signal of a higher layer from the received signal of the physical layer. Further, the receiving unit 120 includes a measuring unit that measures the received signal and acquires the received power and the like.
  • the control unit 130 controls the terminal 10.
  • the function of the control unit 130 related to transmission may be included in the transmission unit 110, and the function of the control unit 130 related to reception may be included in the reception unit 120.
  • control unit 130 of the Reduced Capacity terminal 10 sets the bandwidth of any one of 12RB, 20RB, 24RB, and 96RB as the reduced bandwidth (Reduced random), and transmits the Reduced Capacity terminal 10.
  • the unit 110 may transmit a random access preamble with a bandwidth selected by the control unit 130.
  • the control unit 130 of the Reduced Capacity terminal 10 selects the uplink Bandwidth Part (BWP) based on the position of the frequency bandwidth of the transmission opportunity of the random access preamble selected for transmitting the random access preamble.
  • the transmission unit 110 of the Reduced Capacity terminal 10 may transmit a random access preamble with a bandwidth selected by the control unit 130.
  • FIG. 13 is a diagram showing an example of the functional configuration of the base station 20.
  • the base station 20 has a transmission unit 210, a reception unit 220, and a control unit 230.
  • the functional configuration shown in FIG. 13 is only an example. Any function classification and name of the functional unit may be used as long as the operation according to the present embodiment can be executed.
  • the transmitter 210 may be referred to as a transmitter, and the receiver 220 may be referred to as a receiver.
  • the transmission unit 210 includes a function of generating a signal to be transmitted to the terminal 10 side and transmitting the signal wirelessly.
  • the receiving unit 220 includes a function of receiving various signals transmitted from the terminal 10 and acquiring information of, for example, a higher layer from the received signals. Further, the receiving unit 220 includes a measuring unit that measures the received signal and acquires the received power and the like.
  • the control unit 230 controls the base station 20.
  • the function of the control unit 230 related to transmission may be included in the transmission unit 210, and the function of the control unit 230 related to reception may be included in the reception unit 220.
  • the receiving unit 220 of the base station 20 indicates that the reduced bandwidth of the Redduced Capacity terminal 10 is the bandwidth of any one of 12RB, 20RB, 24RB, and 96RB.
  • the control unit 230 of the base station 20 sets the bandwidth indicated by the capacity information received by the reception unit 220 as the bandwidth for receiving the random access preamble transmitted from the Reducated Capacity terminal 10. You may.
  • control unit 230 of the base station 20 receives the random access preamble transmitted from the Redduced Capacity terminal 10 by the receiving unit 220, and then sets the UL BWP for the Rediced Capacity terminal 10 by RRC signaling. It may be assumed that the UL transmission of the above is performed within the frequency range of the BWP at the time of receiving the random access preamble.
  • each functional block may be realized by one device in which a plurality of elements are physically and / or logically combined, or two or more devices that are physically and / or logically separated may be directly and / or logically separated. / Or indirectly (for example, wired and / or wireless) connection may be realized by these plurality of devices.
  • the terminal 10 and the base station 20 in one embodiment of the present invention may both function as computers that perform processing according to the present embodiment.
  • FIG. 14 is a diagram showing an example of the hardware configuration of the terminal 10 and the base station 20 according to the present embodiment.
  • the terminal 10 and the base station 20 described above may each be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. ..
  • the word “device” can be read as a circuit, device, unit, etc.
  • the hardware configuration of the terminal 10 and the base station 20 may be configured to include one or more of the devices shown in 1001 to 1006 shown in the figure, or may be configured not to include some of the devices. May be good.
  • the processor 1001 For each function of the terminal 10 and the base station 20, by loading predetermined software (program) on hardware such as the processor 1001 and the memory 1002, the processor 1001 performs an calculation, and the communication device 1004 communicates with the memory 1002 and the memory 1002. This is achieved by controlling the reading and / or writing of data in the storage 1003.
  • Processor 1001 operates, for example, an operating system to control the entire computer.
  • the processor 1001 may be composed of a central processing unit (CPU: Central Processing Unit) including an interface with a peripheral device, a control device, an arithmetic unit, a register, and the like.
  • CPU Central Processing Unit
  • the processor 1001 reads a program (program code), a software module or data from the storage 1003 and / or the communication device 1004 into the memory 1002, and executes various processes according to these.
  • a program that causes a computer to execute at least a part of the operations described in the above-described embodiment is used.
  • the transmission unit 110, the reception unit 120, and the control unit 130 of the terminal 10 shown in FIG. 12 may be realized by a control program stored in the memory 1002 and operated by the processor 1001.
  • the transmission unit 210, the reception unit 220, and the control unit 230 of the base station 20 shown in FIG. 13 may be realized by a control program stored in the memory 1002 and operated by the processor 1001.
  • the memory 1002 is a computer-readable recording medium, and is, for example, a ROM (Read Only Memory), an EPROM (Erasable Program ROM), an EPROM (Electrically Erasable Program ROM), a RAM (Random Access Memory), or a RAM (Random Access). May be done.
  • the memory 1002 may be referred to as a register, a cache, a main memory (main storage device), or the like.
  • the memory 1002 can store a program (program code), a software module, or the like that can be executed to perform the process according to the embodiment of the present invention.
  • the storage 1003 is a computer-readable recording medium, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, an optical magnetic disk (for example, a compact disk, a digital versatile disk, a Blu-ray). It may consist of at least one (registered trademark) disk), smart card, flash memory (eg, card, stick, key drive), floppy (registered trademark) disk, magnetic strip, and the like.
  • the storage 1003 may be referred to as an auxiliary storage device.
  • the storage medium described above may be, for example, a database, server or other suitable medium containing memory 1002 and / or storage 1003.
  • the communication device 1004 is hardware (transmission / reception device) for communicating between computers via a wired and / or wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, or the like.
  • the transmission unit 110 and the reception unit 120 of the terminal 10 may be realized by the communication device 1004.
  • the transmitting unit 210 and the receiving unit 220 of the base station 20 may be realized by the communication device 1004.
  • the input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that receives an input from the outside.
  • the output device 1006 is an output device (for example, a display, a speaker, an LED lamp, etc.) that outputs to the outside.
  • the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).
  • Bus 1007 may be composed of a single bus, or may be composed of different buses between devices.
  • terminal 10 and the base station 20 are a microprocessor, a digital signal processor (DSP: Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device) hardware, an FPGA, and an FPGA, respectively. It may be configured to include hardware, and a part or all of each functional block may be realized by the hardware. For example, processor 1001 may be implemented on at least one of these hardware.
  • the random access preamble is selected with reference to the start position of the frequency bandwidth of the selected transmission opportunity or the center position of the frequency bandwidth of the selected transmission opportunity to transmit the random access preamble.
  • the random access preamble based on a control unit that sets the frequency bandwidth used for transmission or reception of the terminal and the frequency bandwidth set by the control unit in order to enable transmission in the frequency bandwidth of the transmission opportunity.
  • a terminal including a transmitter for transmitting a frequency.
  • the terminal is used to transmit or receive the terminal so that the random access preamble can be properly transmitted based on the frequency bandwidth of the transmission opportunity selected to transmit the random access preamble. Since the frequency bandwidth to be used is selected, it is possible to prevent the frequency bandwidth from being set so that the random access preamble cannot be transmitted.
  • the frequency bandwidth used for transmission or reception of the terminal or the reduced frequency bandwidth capacity of the terminal is 12 resource blocks. It may be any one frequency bandwidth included in the range from the frequency bandwidth of the above to the frequency bandwidth of 96 resource blocks.
  • any combination of PRACH SCS ( ⁇ f RA for PRACH), PUSCH SCS ( ⁇ f for PUSCH), and PRACH series length (L RA) specified in the specifications can be used. It can be used to send a random access preamble.
  • the control unit After transmission of the random access preamble, the control unit enables transmission of the random access preamble in the frequency bandwidth of the transmission opportunity as a frequency bandwidth for uplink transmission during execution of the random access procedure.
  • the frequency bandwidth used for transmission or reception of the terminal set for this may be applied.
  • the frequency bandwidth applied to the uplink transmission until the terminal function information (UE capacity information) transmitted from the terminal is received is clarified, and the terminal function information is clarified on the base station side. It is possible to clarify the uplink reception operation until the reception.
  • the control unit When retransmitting the random access preamble after the initial transmission of the random access preamble, the control unit transmits a random access preamble different from the transmission opportunity of the random access preamble selected at the time of the initial transmission of the random access preamble.
  • the opportunity is selected, and the random access preamble is used as the transmission opportunity of the random access preamble based on the start position or the center position of the frequency bandwidth of the transmission opportunity of the random access preamble that is different from the transmission opportunity of the random access preamble selected at the time of the first transmission.
  • the frequency bandwidth used for transmission or reception of the terminal may be set so that it can be retransmitted in the frequency bandwidth.
  • the terminal resends even if the transmission opportunity selected by the terminal for the first transmission of the random access preamble differs from the transmission opportunity selected when resending the random access preamble. Since the frequency bandwidth used for transmission or reception of the terminal is set so that the random access preamble can be appropriately retransmitted based on the frequency bandwidth of the transmission opportunity selected at the time of, the random access preamble cannot be transmitted. It is possible to prevent such a frequency bandwidth from being set.
  • the random access preamble can be transmitted in the frequency bandwidth of the transmission opportunity with reference to the start position of the frequency bandwidth of the transmission opportunity for the terminal to transmit the random access preamble or the center position of the frequency bandwidth of the transmission opportunity.
  • a base including a control unit that sets a frequency bandwidth used for transmission or reception of a terminal, and a reception unit that receives the random access preamble based on the frequency bandwidth set by the control unit. Station.
  • the terminal is used to transmit or receive the terminal so that the random access preamble can be properly transmitted based on the frequency bandwidth of the transmission opportunity selected to transmit the random access preamble.
  • the frequency bandwidth By selecting the frequency bandwidth to be used, it is possible to prevent the frequency bandwidth from being set so that the random access preamble cannot be transmitted, and the base station has a transmission opportunity for the terminal to transmit the random access preamble.
  • the base station Based on the frequency bandwidth, it is possible to set the frequency bandwidth and frequency bandwidth used for transmission or reception so that the random access preamble can be properly received.
  • the boundary of the functional unit or the processing unit in the functional block diagram does not always correspond to the boundary of the physical component.
  • the operation of the plurality of functional units may be physically performed by one component, or the operation of one functional unit may be physically performed by a plurality of components.
  • the processing order may be changed as long as there is no contradiction.
  • the terminal 10 and the base station 20 have been described with reference to functional block diagrams, but such devices may be implemented in hardware, software, or a combination thereof.
  • the software operated by the processor of the terminal 10 according to the embodiment of the present invention and the software operated by the processor of the base station 20 according to the embodiment of the present invention are random access memory (RAM), flash memory, and read-only memory, respectively. It may be stored in (ROM), EPROM, EEPROM, registers, hard disk (HDD), removable disk, CD-ROM, database, server or any other suitable storage medium.
  • information notification includes physical layer signaling (for example, DCI (Broadcast Control Information), UCI (Uplink Control Information)), higher layer signaling (for example, RRC (Radio Resource Control) signaling, MAC (Medium Access) Signaling). Broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals or a combination thereof may be used.
  • RRC signaling may be referred to as an RRC message, for example, RRC. It may be a connection setup (RRC Signaling Setup) message, an RRC connection reconfiguration (RRC Signaling Configuration) message, or the like.
  • Each aspect / embodiment described in the present specification includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G, 5G, FRA (Future Radio Access), W-CDMA. (Registered Trademarks), GSM (Registered Trademarks), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi), LTE 802.16 (WiMAX), IEEE 802.20, UWB (Ultra-WideBand), It may be applied to Bluetooth®, other systems that utilize suitable systems and / or next-generation systems that are extended based on them.
  • the specific operation performed by the base station 20 in the present specification may be performed by its upper node (upper node).
  • various operations performed for communication with the terminal 10 are performed on a network other than the base station 20 and / or the base station 20. It is clear that it can be done by a node (eg, MME or S-GW, but not limited to these).
  • a node eg, MME or S-GW, but not limited to these.
  • MME Mobility Management Entity
  • the terminal 10 may be a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, or a wireless device. It may also be referred to as a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.
  • Base station 20 may also be referred to by one of ordinary skill in the art by NB (NodeB), eNB (enhanced NodeB), base station (Base Station), gNB, or some other suitable term.
  • NB NodeB
  • eNB enhanced NodeB
  • Base Station Base Station
  • gNB Base Station
  • the bandwidth portion (BWP: Bandwidth Part) (which may also be referred to as partial bandwidth) may represent a subset of consecutive common RBs (common resources blocks) for a certain neurology in a carrier. good.
  • the common RB may be specified by the index of the RB with respect to the common reference point of the carrier.
  • PRBs may be defined in a BWP and numbered within that BWP.
  • the BWP may include a BWP for UL (UL BWP) and a BWP for DL (DL BWP).
  • UL BWP UL BWP
  • DL BWP DL BWP
  • One or more BWPs may be set in one carrier for the UE.
  • At least one of the configured BWPs may be active, and the UE may not expect to send or receive a given signal / channel outside the active BWP.
  • “cell”, “carrier” and the like in this disclosure may be read as “BWP”.
  • the radio frame may be composed of one or more frames in the time domain. Each one or more frames in the time domain may be referred to as a subframe. Subframes may further consist of one or more slots in the time domain.
  • the subframe may have a fixed time length (eg, 1 ms) that is independent of numerology.
  • the numerology may be a communication parameter that applies to at least one of the transmission and reception of a signal or channel. Numerology includes, for example, subcarrier interval (SCS: SubCarrier Spacing), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI: Transmission Time Interval), number of symbols per TTI, radio frame configuration, transmission / reception.
  • SCS SubCarrier Spacing
  • TTI Transmission Time Interval
  • the slot may be composed of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbol, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbol, etc.) in the time domain. Slots may be in numerology-based time units.
  • the slot may include a plurality of mini slots. Each minislot may consist of one or more symbols in the time domain. Further, the mini slot may be referred to as a sub slot. A minislot may consist of a smaller number of symbols than the slot.
  • a PDSCH (or PUSCH) transmitted in a time unit larger than the minislot may be referred to as a PDSCH (or PUSCH) mapping type A.
  • the PDSCH (or PUSCH) transmitted using the minislot may be referred to as the PDSCH (or PUSCH) mapping type B.
  • Radio frames, subframes, slots, minislots and symbols all represent time units when transmitting signals.
  • the radio frame, subframe, slot, minislot and symbol may have different names corresponding to each.
  • one subframe may be referred to as a transmission time interval (TTI)
  • TTI transmission time interval
  • TTI transmission time interval
  • TTI transmission time interval
  • At least one of the subframe and TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (eg, 1-13 symbols), or a period longer than 1 ms. It may be.
  • the unit representing TTI may be called a slot, a mini slot, or the like instead of a subframe.
  • TTI refers to, for example, the minimum time unit of scheduling in wireless communication.
  • the base station schedules each user terminal to allocate radio resources (frequency bandwidth that can be used in each user terminal, transmission power, etc.) in TTI units.
  • the definition of TTI is not limited to this.
  • the TTI may be a transmission time unit such as a channel-encoded data packet (transport block), a code block, or a code word, or may be a processing unit such as scheduling or link adaptation.
  • the time interval for example, the number of symbols
  • the time interval for example, the number of symbols
  • one or more TTIs may be the minimum time unit for scheduling. Further, the number of slots (number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.
  • a TTI having a time length of 1 ms may be referred to as a normal TTI (TTI in LTE Rel. 8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, or the like.
  • TTIs shorter than normal TTIs may be referred to as shortened TTIs, short TTIs, partial TTIs (partial or fractional TTIs), shortened subframes, short subframes, minislots, subslots, slots, and the like.
  • the long TTI (for example, normal TTI, subframe, etc.) may be read as a TTI having a time length of more than 1 ms, and the short TTI (for example, shortened TTI, etc.) is less than the TTI length of the long TTI and 1 ms. It may be read as a TTI having the above TTI length.
  • the resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or a plurality of continuous subcarriers in the frequency domain.
  • the number of subcarriers contained in the RB may be the same regardless of the numerology, and may be, for example, 12.
  • the number of subcarriers contained in the RB may be determined based on numerology.
  • the time domain of the RB may also include one or more symbols and may be one slot, one minislot, one subframe, or one TTI in length. Each 1TTI, 1 subframe, etc. may be composed of one or a plurality of resource blocks.
  • One or more RBs include a physical resource block (PRB: Physical RB), a subcarrier group (SCG: Sub-Carrier Group), a resource element group (REG: Resource Element Group), a PRB pair, an RB pair, and the like. May be called.
  • the resource block may be composed of one or a plurality of resource elements (RE: Resource Elements).
  • 1RE may be a radio resource area of 1 subcarrier and 1 symbol.
  • determining and “determining” used herein may include a wide variety of actions.
  • “Judgment” and “decision” include, for example, judgment, calculation, computing, processing, deriving, investigating, searching (for example, table). , Searching in a database or another data structure), ascertaining can be regarded as “judgment” or “decision”.
  • "judgment” and “decision” are receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), and access. (Acquiring) (for example, accessing data in memory) may be regarded as "judgment” or “decision”.
  • judgment and “decision” are regarded as “judgment” and “decision” that the things such as solving, selecting, selecting, establishing, and comparing are regarded as “judgment” and “decision”. Can include. That is, “judgment” and “decision” may include considering some action as “judgment” and “decision”.
  • Terminal 110 Transmitter 120 Receiver 130 Control 20
  • Base station 210 Transmitter 220 Receiver 230
  • Control 1001 Processor 1002 Memory
  • Storage 1004 Communication device
  • Input device 1006 Output device

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Le terminal selon l'invention est conçu pour sélectionner une opportunité de transmission afin de transmettre un préambule d'accès aléatoire, et est conçu pour permettre la transmission du préambule d'accès aléatoire en utilisant une plage de fréquence de l'opportunité de transmission sélectionnée, la position de départ de plage de fréquence de l'opportunité de transmission sélectionnée ou la position centrale de la plage de fréquence de l'ensemble d'opportunités de transmission étant sélectionnée comme référence. À cet effet, le terminal comprend : une unité de commande qui définit une plage de fréquence utilisée pour la transmission ou la réception par le terminal ; et une unité de transmission qui transmet le préambule d'accès aléatoire sur la base de la plage de fréquence définie par l'unité de commande.
PCT/JP2020/005672 2020-02-13 2020-02-13 Terminal et station de base WO2021161485A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US17/798,226 US20230129299A1 (en) 2020-02-13 2020-02-13 Terminal and base station
JP2022500160A JPWO2021161485A5 (ja) 2020-02-13 端末、基地局、通信システム、及び通信方法
CN202080095756.2A CN115053618A (zh) 2020-02-13 2020-02-13 终端及基站
EP20918835.8A EP4106428A4 (fr) 2020-02-13 2020-02-13 Terminal et station de base
PCT/JP2020/005672 WO2021161485A1 (fr) 2020-02-13 2020-02-13 Terminal et station de base

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/005672 WO2021161485A1 (fr) 2020-02-13 2020-02-13 Terminal et station de base

Publications (1)

Publication Number Publication Date
WO2021161485A1 true WO2021161485A1 (fr) 2021-08-19

Family

ID=77292850

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/005672 WO2021161485A1 (fr) 2020-02-13 2020-02-13 Terminal et station de base

Country Status (4)

Country Link
US (1) US20230129299A1 (fr)
EP (1) EP4106428A4 (fr)
CN (1) CN115053618A (fr)
WO (1) WO2021161485A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023246778A1 (fr) * 2022-06-24 2023-12-28 夏普株式会社 Procédé exécuté au moyen d'un équipement utilisateur, et équipement utilisateur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024087060A1 (fr) * 2022-10-26 2024-05-02 华为技术有限公司 Procédé et appareil de communication

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101335969B (zh) * 2008-08-01 2012-11-28 中兴通讯股份有限公司 一种时分双工系统上行信道测量参考信号的发送方法
US10880867B2 (en) * 2017-11-17 2020-12-29 Qualcomm Incorporated Selecting a new radio uplink resource to transmit a random access procedure communication
US10869338B2 (en) * 2017-11-18 2020-12-15 Lenovo (Singapore) Pte. Ltd. Random access configuration

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
3GPP TS 38.211, December 2019 (2019-12-01)
ERICSSON: "New SID on Support of Reduced Capability NR Devices", 3GPP TSG RAN MEETING #86 RP-193238, 12 December 2019 (2019-12-12), XP051840369 *
VIVO: "Increasing Msg1 Transmission Opportunities for NR-U", 3GPP TSG RAN WG2 #105BIS R2-1903078, 6 April 2019 (2019-04-06), XP051700435 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023246778A1 (fr) * 2022-06-24 2023-12-28 夏普株式会社 Procédé exécuté au moyen d'un équipement utilisateur, et équipement utilisateur

Also Published As

Publication number Publication date
EP4106428A4 (fr) 2023-11-15
US20230129299A1 (en) 2023-04-27
JPWO2021161485A1 (fr) 2021-08-19
EP4106428A1 (fr) 2022-12-21
CN115053618A (zh) 2022-09-13

Similar Documents

Publication Publication Date Title
CN109588058B (zh) 无线通信系统中执行bwp操作的方法及其装置
EP3295727B1 (fr) Transmission de canal physique de commande partagé de liaison montante (pusch) sans conflit au moyen d'un accès multiple avec écoute de porteuse
KR102210412B1 (ko) 무선 통신 시스템에서 대역폭 부분에 할당되는 자원 영역을 결정하는 방법 및 이를 위한 장치
JP6927966B2 (ja) 端末、無線通信方法及びシステム
WO2020194760A1 (fr) Dispositif utilisateur et dispositif de station de base
CN110972279A (zh) 传输数据的方法和装置
KR20120041143A (ko) 다중 무선 접속 시스템에서 데이터를 송수신하는 방법 및 장치
WO2021161485A1 (fr) Terminal et station de base
US20210144704A1 (en) Method for allocating resources for multiple traffic types in wireless communication system supporting v2x and apparatus therefor
JPWO2020144825A1 (ja) ユーザ装置及び基地局装置
CN115023997A (zh) 终端和基站
JPWO2020100559A1 (ja) 端末、基地局及び通信方法
WO2021152865A1 (fr) Terminal et station de base
WO2021038920A1 (fr) Terminal, station de base et procédé de communication
WO2021152863A1 (fr) Terminal et station de base
WO2021140665A1 (fr) Terminal et procédé de communication
WO2021044598A1 (fr) Terminal et procédé de communication
CN116569628A (zh) 终端、基站以及通信方法
WO2021152864A1 (fr) Terminal et station de base
CN113455068A (zh) 用户装置以及基站装置
US11974262B2 (en) Method of performing BWP operation in wireless communication system and an apparatus therefor
WO2022044558A1 (fr) Terminal, station de base et procédé de communication
WO2021261199A1 (fr) Dispositif de communication
WO2022038919A1 (fr) Terminal et procédé de communication
WO2021161434A1 (fr) Terminal et station de base

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20918835

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022500160

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2020918835

Country of ref document: EP

Effective date: 20220913